<!DOCTYPE html>
<html xmlns:th="http://www.thymeleaf.org">
<head  th:replace="layout::header">

</head>
<body>
<nav th:replace="layout::navbar"></nav> <br>
<div class="paper container"> <br>
    <form action="/users/save" th:object="${U}" method="POST">
        <input type="text" placeholder="用户ID" th:field="${U.userId}"> <br>
        <input type="text" placeholder="账号"   th:field="${U.userNum}"> <br>
        <input type="text" placeholder="密码"  th:field="${U.password}"><br>
        <button type="submit">新建用户</button>
    </form>
</div>
</body>
</html>